Simulação de processos usando o software aveva process simulation: análise de estudos de caso
Data
2022-02-04
Autores
Sola, Bruno Lustosa 
Orientadores
Silva, Carlos Alexandre Moreira da
Tipo
Trabalho de conclusão de curso
Título da Revista
ISSN da Revista
Título de Volume
Resumo
Atualmente é muito utilizado ferramentas convencionais de simulação, que se baseiam no método sequencial modular (SM), para a criação do fluxo de processo, onde para cada nível são elaboradas diversas simulações para atender as necessidades de cada etapa do ciclo de vida de uma planta industrial. Como exemplo de novos simuladores, tem-se o AVEVA Process Simulation, que se baseia no método orientado a equação (OE) com melhoramentos do qual possibilita este tipo de método ser utilizado durante todas as fases de simulação do projeto por meio de simulação centralizada e unificada. No presente estudo, foi simulado o processo de produção do propileno glicol em um reator modelo CSTR, em estado estacionário por meio do software AVEVA Process Simulation. A elaboração da simulação constituiu da criação/edição de modelos para os equipamentos customizados do processo, pela função Desenvolvimento de Modelo (Model Writing) e modo Processo (Process). Entre os modelos criados/editados tem-se a Fonte (Source), Mistura (Mix), DefKinetic, equipamento reator modelo CSTR e Saída (Sink). Após a criação do esquema do processo, escolha do modelo termodinâmico usado na simulação, foram inseridos os valores iniciais do sistema, do qual resultou nos valores finais do processo, conversão e temperatura. Por meio dos resultados gerados pela simulação com a conversão de 36 % do óxido de propileno em produto e a condição de temperatura de 313 K, foi possível comparar com os valores do estudo clássico do livro proposto por FOGLER (2009), obtendo-se resultados satisfatórios. Utilizou-se da ferramenta Otimização (Optimization) do AVEVA Process Simulation para análise de sensibilidade, do qual resultou que a melhor forma de aumentar o valor da conversão do reagente limitante seria aumentar o volume do reator ou do tempo de residência.
Currently, process flow simulation tools are widely used, based on the modular sequential method, for each creation of several simulations designed to meet the needs of each stage of the life cycle of an industrial plant. As an example of new simulators, there is the AVEVA Process Simulation, which is based on the Equation Oriented Method with improvements that allow this type of method to be used during all the simulation phases of the project through centralized simulation. In the present study, the production process of propylene glycol was simulated in a CSTR model reactor, in steady state, using the AVEVA Process Simulation software. The elaboration of the simulation consisted of the creation/editing of models for the customized equipment of the process, through the Model Development function Model Writing and Process mode (Process). Among the models created/edited are Source (Source), Mix (Mix), DefKinetic, reactor equipment model CSTR and Output (Sink). After creating the process schema, choosing the thermodynamic model used in the simulation, the initial values of the system were inserted, which resulted in the final values of the process, conversion and temperature. Through the results generated by the simulation with the conversion of 36% of the propylene oxide into product and the temperature condition of 313 K, it was possible to compare with the values of the classic study of the book proposed by FOGLER (2009), obtaining results satisfactory. The Optimization tool of AVEVA Process Simulation was used for sensitivity analysis, which resulted that the best way to increase the limiting reagent conversion value would be to increase the reactor volume or the residence time.
Currently, process flow simulation tools are widely used, based on the modular sequential method, for each creation of several simulations designed to meet the needs of each stage of the life cycle of an industrial plant. As an example of new simulators, there is the AVEVA Process Simulation, which is based on the Equation Oriented Method with improvements that allow this type of method to be used during all the simulation phases of the project through centralized simulation. In the present study, the production process of propylene glycol was simulated in a CSTR model reactor, in steady state, using the AVEVA Process Simulation software. The elaboration of the simulation consisted of the creation/editing of models for the customized equipment of the process, through the Model Development function Model Writing and Process mode (Process). Among the models created/edited are Source (Source), Mix (Mix), DefKinetic, reactor equipment model CSTR and Output (Sink). After creating the process schema, choosing the thermodynamic model used in the simulation, the initial values of the system were inserted, which resulted in the final values of the process, conversion and temperature. Through the results generated by the simulation with the conversion of 36% of the propylene oxide into product and the temperature condition of 313 K, it was possible to compare with the values of the classic study of the book proposed by FOGLER (2009), obtaining results satisfactory. The Optimization tool of AVEVA Process Simulation was used for sensitivity analysis, which resulted that the best way to increase the limiting reagent conversion value would be to increase the reactor volume or the residence time.